1) The primary germ layer endoderm is derived from_____________? a. Embryonal disc b. Yolk sac c. Amniotic cavity d. Palacenta
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2) Embryologically hard palate develop from________________? a. Maxillary process b. Lateral palatine process c. Frontonasal process d. All of the above
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3) The posterior part of the tongue develops from_________________? a. First Arch b. Third Arch c. Second Arch d. All of the above
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4) Tongue develops from all of the following except_______________? a. Tuberculum impar b. Hypobranchial eminence c. Lingual swellings d. Arytenoid swellings
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5) Palate is formed from: a. Median palatine process b. Lateral palatine process c. Both A and D d. Either A or B
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6) Which of the following is NOT true about paramedian pits _______________? a. Found and the lower lip b. Found on the upper lip c. On either side of the midline d. Associated with cleft lip and palate
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7) Maximum oral structures are having their origin from___________________? a. Ectoderm b. Mesoderm c. Endoderm d. None of the above
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8) Which is not formed from the cartilaginous part of viscerocranium ? a. Sphenoid b. Vomer c. Zygoma d. Lacrimal
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9) Imbilical cord contains_________________? a. Three arteries and one vein b. One artery and three veins c. One artery and one vein d. Two arteries and one vein
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10) Development of palate beings at the age of________________? a. 4 weeks b. 6 weeks c. 13 weeks d. 18 weeks
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11) 1st arch artery is_________________? a. Maxillary artery b. Mandibular artery c. Carotid artery d. Stapedial artery
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12) The period of embryo extends_______________? a. From the end of first week till the eight week b. from the period of ovum till the tenth week c. From oogenesis till the eight week d. From fertilization till the eight week
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13) Failure of descent of thyroid analage can be seen in the tongue_________________? a. In anterior 2/3 of dorsal aspect b. In posterior 1/3 of dorsal aspect c. Near the base of tongue close to foraman caecum d. In anterior 2/3 of inferior surface
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14) Palatine tonsil develops from________________? a. Dorsal part of II pharyneal pouches b. Ventral part of II pharyneal pouches c. Dorsal part of III pharyneal pouches d. Ventral part of I pharyneal pouches
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15) Hyoid bone is a derivative of_______________? a. First pharyngeal arch b. First and second pharyngeal arches c. Second and third pharyngeal arches d. Fourth pharyngeal arch
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16) Derivative of second pharyngeal arch is________________? a. Spheno Mandibular Ligament b. Stylomandibular ligament c. Anterior ligament of Malleus d. Stylohyoid Ligament
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17) Thyroid gland develops rom________________? a. Thyroglossal duct b. Rathke’s pouch c. Notochordal process d. Embryonal disc
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18) External auditory meatus develops from___________________? a. Dorsal part of 1st ectodermal pouch b. Dorsal part of 2nd cleft c. Dorsal part of 3rd ectodermal pouch d. Sixth branchial arch
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19) The growth and development in the craniofacial region occurs in following order_______________? a. The head first, then width of face and length (or) depth of face after wards. b. the width of face, then head and length (or) depth of face after wards c. The length ( or) depth of face then width of face and the head d. The head first , length (or) depth of face and then width of face
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20) All of the following cells are of endodermal origin except______________? a. Hepatocytes b. Epithelial cells of the intestine c. Odontoblasts d. Goblet cells
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21) Posterior belly of digastric is derived from________________? a. First brachial arch b. First brachial pouch c. Second brachial arch d. Second pharyngeal pouch
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22) Spheno mandibular ligament is developed from________________? a. first arch b. Second arch c. Third arch d. Fourth arch
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23) The lateral lingual swellings and tuberculum impar give rise to______________? a. Anterior 1/3 of tongue b. Anterior 2/3 of tongue c. Posterior 1/3 of tongue d. Posterior 2/3 of tongue
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24) The tongue is formed from____________? a. 1st,2nd ,3rd bronchial arches b. 1st ,3rd, 5th bronchial arches c. 1st ,3rd, 4th bronchial arches d. 1st, 4th, 5th bronchial arches
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25) Meckel’s cartilage extends from______________? a. Otic capsule b. Styloid bone c. Hyoid cartilage d. None of the above
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26) Developmentally stomodeum is separated from the pharynx dorsally by ____________? a. Pharyneal arch b. Buccopharyngeal membrane c. Rathke’s pouch d. Mandibular process
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27) Cleft lip occurs due to failure of______________? a. Fusion of lateral nasal process with maxillary process b. Fusion of median nasal process with maxillary process c. Fusion of median and lateral nasal process d. None of the above
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28) Upper and lower lips are formed from which embryonic processes_____________? a. Maxillary and mandibular b. Maxillary and median nasal c. Maxillary mandibular lateral nasal and median nasal d. Mandibular and median nasal
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29) Parotid fascia extends anteriorly as _______________? a. Deep cervical fascia b. Fascia lata c. Masseteric fascia d. Stylomandibular ligament
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30) The cortex of lymph node contains__________________? a. Cords of billroth b. Hassal’s corpuscles c. Lymphatic nodules d. While pulp
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